{"id":42764,"date":"2023-01-26T07:38:34","date_gmt":"2023-12-31T05:42:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%8c%e5%85%a8%e5%90%b8%e6%94%b6%e5%8e%86%e5%8f%b2\/"},"modified":"2024-04-29T11:30:42","modified_gmt":"2024-04-29T03:30:42","slug":"%e5%ae%8c%e5%85%a8%e5%90%b8%e6%94%b6%e5%8e%86%e5%8f%b2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%8c%e5%85%a8%e5%90%b8%e6%94%b6%e5%8e%86%e5%8f%b2\/","title":{"rendered":"\u5b8c\u5168\u5438\u6536\u5386\u53f2"},"content":{"rendered":"<h1>\u7b80\u8981\u6982\u62ec<\/h1>\n<p>\u5728shell\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u201chistory -c\u201d\u547d\u4ee4\u6765\u6e05\u9664\u5386\u53f2\u8bb0\u5f55\u3002\u4f46\u662f\uff0c\u5386\u53f2\u8bb0\u5f55\u8fd8\u4f1a\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u5728\u6ce8\u9500\u65f6\u4f1a\u4ece\u5185\u5b58\u4e2d\u6062\u590d\u3002\u56e0\u6b64\uff0c\u5f53\u518d\u6b21\u767b\u5f55\u65f6\uff0c\u5386\u53f2\u8bb0\u5f55\u53c8\u4f1a\u91cd\u65b0\u663e\u793a\u51fa\u6765\u3002<\/p>\n<h1>\u547d\u4ee4\u884c<\/h1>\n<p>\u6267\u884c\u4e0b\u9762\u7684\u811a\u672c\u5c06\u88ab\u5b8c\u5168\u5220\u9664\u3002<\/p>\n<pre class=\"post-pre\"><code>cat \/dev\/null &gt; ~\/.bash_history &amp;&amp; history -c &amp;&amp; exit\r\n<\/code><\/pre>\n<h1>\u5b89\u667a\u80fd<\/h1>\n<p>\u76ee\u5f55\u7ed3\u6784<\/p>\n<pre class=\"post-pre\"><code>~\/ansible\r\n  |- server\r\n     |- erase_history.yml\r\n~\/scripts\r\n  |- server\r\n     |- erase_script.sh\r\n<\/code><\/pre>\n<h2>Ansible\u5267\u672c<\/h2>\n<p>\u5220\u9664\u5386\u53f2\u8bb0\u5f55.yml<\/p>\n<pre class=\"post-pre\"><code>---\r\n- name: check firewall setting\r\n  hosts: \"{{ host | default('network') }}\"\r\n  gather_facts: no\r\n\r\n  tasks:\r\n    - name: erase history\r\n      shell:  \"cat \/dev\/null &gt; ~\/.bash_history &amp;&amp; history -c &amp;&amp; exit\"\r\n      args:\r\n        executable: \/bin\/bash\r\n<\/code><\/pre>\n<h2>Bash\u811a\u672c<\/h2>\n<p>\u64e6\u9664\u5386\u53f2.sh<\/p>\n<pre class=\"post-pre\"><code>#!\/bin\/bash\r\n\r\nHOST=\"\"\r\n\r\nusage() {\r\n  echo \"Usage: erase_history.sh [-n \u30db\u30b9\u30c8\u540d] [-h \u30d8\u30eb\u30d7]\\nhistory\u3092\u521d\u671f\u5316\u3059\u308b\" 1&gt;&amp;2\r\n}\r\n\r\nexit_abnormal() {\r\n  usage\r\n  exit 1\r\n}\r\n\r\ncall_ansible_script() {\r\n  cd ~\/ansible\/server\/\r\n  CMD=\"ansible-playbook erase_history.yml --ask-vault-pass\"\r\n  ARG=\"\"\r\n  if [ ! -z \"$HOST\" ]; then\r\n    ARG=\"host=$HOST\"\r\n  fi\r\n  ARG=\"$(echo -e \"${ARG}\" | sed -e 's\/^[[:space:]]*\/\/')\"\r\n  if [ ! -z \"$ARG\" ]; then\r\n    CMD+=\" -e \\\"$ARG\\\"\"\r\n  fi\r\n  eval ${CMD}\r\n}\r\n\r\nwhile getopts \":n:h\" OPT; do\r\n  case $OPT in\r\n  n) HOST=${OPTARG};;\r\n  h) usage\r\n    exit 0\r\n    ;;\r\n  :) echo \"-$OPTARG\u306f\u30db\u30b9\u30c8\u540d\u304c\u5fc5\u9808\u3067\u3059\"\r\n    exit_abnormal;;\r\n  esac\r\ndone\r\ncall_ansible_script\r\nexit 0\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a (y\u01d0 \u76f4\u63a5\u7528\u6cd5\u8bed\u6cd5\u53e5\u8868\u8fbe<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u8981\u6982\u62ec \u5728shell\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u201chistory -c\u201d\u547d\u4ee4\u6765\u6e05\u9664\u5386\u53f2\u8bb0\u5f55\u3002\u4f46\u662f\uff0c\u5386\u53f2\u8bb0\u5f55\u8fd8\u4f1a\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-42764","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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